Camshaft Gear/Sprocket: Service and Repair
Camshaft Intake and Exhaust Sprocket Replacement
Special Tools
EN-955 - Locking Pin
For equivalent regional tools, refer to Special Tools Tools and Equipment.
Removal Procedure
1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement Service and Repair.
2. Remove the camshaft cover. Refer to Camshaft Cover Replacement Service and Repair.
3. Remove both camshaft position actuator solenoid valves. Refer to Camshaft Position Actuator Solenoid Valve Replacement Service and Repair.
4. Adjust the engine to TDC. Refer to Camshaft Timing Chain Adjustment Service and Repair.
5. Remove the timing chain tensioner plug (1) from the engine front cover.
6. Install a wrench (1) on the cast hexagonal portion of the intake camshaft, rotate the camshaft toward the exhaust camshaft in order to apply tension.
7. Install EN-955 - pin(2) to the timing chain tensioner bore (1) to secure it in place.
8. Remove the wrench from intake camshaft.
9. Remove the upper timing chain guide bolts (1).
10. Remove the upper timing chain guide (2).
11. Loosen the intake camshaft sprocket bolt (2) while holding up the hexagon of the intake camshaft with a wrench (1).
12. Loosen the exhaust camshaft sprocket bolt while holding up the hexagon of the exhaust camshaft with a wrench.
13. Remove and DISCARD the camshaft sprocket bolts (2) and the camshaft position exciter wheels (1).
14. Remove the camshaft sprockets (2) and timing chain (1) as one unit.
15. Remove the intake and exhaust camshaft sprocket.
16. Allow the chain to rest on the front cover.
Installation Procedure
1. Install the camshaft sprockets (2) and timing chain (1) as one unit.
2. Install the camshaft position exciter wheels (1).
Caution:
Refer to Fastener Caution Fastener Caution.
3. Install the NEW camshaft sprocket bolts (2) and tighten to 50 Nm (37 lb ft) plus 60 degrees.
4. Remove the EN-955 - pin to apply tension to the timing chain.
Note:
Engine must be adjusted to TDC.
5. Adjust the camshaft timing chain. Refer to Camshaft Timing Chain Adjustment Service and Repair.
6. Install the upper timing chain guide (2).
7. Install the upper timing chain guide bolts (1) and tighten to 8 Nm (71 lb in).
8. Install the timing chain tensioner plug (1) and tighten to 50 Nm (37 lb ft).
9. Install both camshaft position actuator solenoid valves. Refer to Camshaft Position Actuator Solenoid Valve Replacement Service and Repair.
10. Install the camshaft cover. Refer to Camshaft Cover Replacement Service and Repair.
11. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement Service and Repair.
12. Check and correct engine oil level.